Automobile bumper



FIG. 1 is a top plan view of the automobile bumper;

FIG. 2 is a front elevation view of the automobile bumper;

FIG. 3 is a left side elevation view of the automobile bumper;

FIG. 4 is a right side elevation view of the automobile bumper; and,

FIG. 5 is a bottom plan view of the automobile bumper.

The matter delineated in dashed lines forms no part of the claimed ornamental design. 

The ornamental design for an automobile bumper, as shown and described. 